Granted Patent
Utility
US 6,149,481 · App. 09/177,811
Extended life disposable pulse oximetry sensor and method of making
Inventors:
Huisun Wang, David R. Rich, Barry J. Feldman
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: Oct 23, 1998
Inventors
Huisun Wang
David R. Rich
Barry J. Feldman
Assignee (at issue)
NTC Technology, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.